function OKCMS () {

  var cache = null

  this.getAll = function () {
    var deferred = $.Deferred()
    if (cache) {
      deferred.resolve(cache)
    } else {
      $.ajax({
        method: 'GET',
        url: '/db.json',
        dataType: 'json'
      }).done(onFetch).fail(onError)
    }

    return deferred

    function onFetch (data) {
      cache = sort(data)
      // Freeze that mutha
      // if (Object.freeze)
      //   deepFreeze(cache)
      deferred.resolve(data)
    }

    function onError (err) {
      deferred.reject(err)
    }

    // In-place sort by __index
    function sort (data) {
      Object.keys(data).forEach(function (key) {
        data[key] = (data[key] || []).sort(byIndex)
      })
      return data
    }

    function byIndex (a, b) {
      var iA = a && a.__index
      var iB = b && b.__index
      return iA > iB ? -1 : (iB > iA ? 1 : 0)
    }
  }
}